# Cooperation procedure

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The **cooperation procedure** (formally known as the Article 252 procedure) was one of the principal [legislative procedures](/source/Legislature_of_the_European_Union) of the [European Community](/source/European_Community), before the entrance into force of the [Treaty of Amsterdam](/source/Treaty_of_Amsterdam). It was retained after that treaty but only in a few areas. It was finally repealed by the [Treaty of Lisbon](/source/Treaty_of_Lisbon) in 2009.

The procedure's introduction by the [Single European Act](/source/Single_European_Act) marked the first step toward real power for the European Parliament.[1] Under the procedure the Council could, with the support of Parliament and acting on a proposal by the Commission, adopt a legislative proposal by a [qualified majority](/source/Qualified_majority), but the Council could also overrule a rejection of a proposed law by the Parliament by adopting a proposal unanimously.[2]

Prior to the Amsterdam Treaty the procedure covered a wide variety of legislation, notably in relation to the creation of the Single Market.[3] It was amended by that treaty when its replacement with the codecision procedure failed to be agreed. The [Nice Treaty](/source/Nice_Treaty) limited the procedure to certain aspects of [economic and monetary union](/source/Economic_and_monetary_union).[4]

The cooperation procedure was repealed by the [Treaty of Lisbon](/source/Treaty_of_Lisbon).

## References

1. **[^](#cite_ref-1)** Craig, Paul; de Burca, Grainne (2003). [*EU Law: Text, Cases and Materials*](https://archive.org/details/eulaw00paul/page/143) (3rd ed.). Oxford, New York: Oxford University Press. p. [143](https://archive.org/details/eulaw00paul/page/143). [ISBN](/source/ISBN_(identifier)) [0-19-925608-X](https://en.wikipedia.org/wiki/Special:BookSources/0-19-925608-X).

1. **[^](#cite_ref-2)** Article 252(c) paragraph 2 of the pre-Lisbon [Treaty establishing the European Community](/source/Treaty_establishing_the_European_Community).

1. **[^](#cite_ref-3)** Craig, Paul; de Burca, Grainne (2003). [*EU Law: Text, Cases and Materials*](https://archive.org/details/eulaw00paul/page/143) (3rd ed.). Oxford, New York: Oxford University Press. p. [143](https://archive.org/details/eulaw00paul/page/143). [ISBN](/source/ISBN_(identifier)) [0-19-925608-X](https://en.wikipedia.org/wiki/Special:BookSources/0-19-925608-X).

1. **[^](#cite_ref-4)** Before Lisbon there were only three legal bases for the adoption of legislation under Article 252: Articles 99(5), 103(2) and 106(2). Article 102(2) only related to legislation adopted before 1994 and was therefore spent. (All article numbers refer to pre-Lisbon TEC numbering).

## See also

- [Legislature of the European Union](/source/Legislature_of_the_European_Union)

- [Codecision procedure](/source/Codecision_procedure)

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